Public bug reported: Just try to upgrade from 18 to 20 and it failed. I can see in the logs it fail after it can't calculate python-dbg.
I did not install much on this machine. I found similar bug but it's marked as closed. My laptop is up to date(18.04) but still fail. upgrade from 18.04 to 20.04 fails to calculate if python-dbg is installed Bug #1887544 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.41 ProcVersionSignature: Ubuntu 4.15.0-126.129-generic 4.15.18 Uname: Linux 4.15.0-126-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.20 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Tue Dec 8 14:48:28 2020 PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-12-08 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907299 Title: Can't upgrade from 18 to 20 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1907299/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs